Construction of Dynamical Information Space by using the Structual Properties of World Wide Web

本研究的目标是开发有效的网络爬行者，并调查万维网（WWW）上信息传递的基本属性，基于在自我组织的管理人员中演变的链接结构，以动态地构建信息空间以记录用户的主观视点。以下的结果已在本赠款支持的条款下报告。根据用于卷积编程的内部点方法的模拟，我们研究了由subjective视点组合在信息空间中的信息片段之间的考虑因素的理论效应。我们已经在Java+HORB软件环境中为PC开发了两种类型的主奴隶和分布的Web浏览器，以便收集和分析链接结构的真实数据。我们在网络社区的核心页面之间找到了一个新的现象，并讨论了具有不同计算性能的不同系统上的负载平衡问题。仿真结果还显示了无规模结构的重要属性，其中包括WWW在内的许多真正复杂网络中常见的可见性，用于包路由中级联故障和网络上的传播病毒大小的破坏性策略与与社会/技术和生物系统中的传播病毒的破坏性相似。这些活动由邀请的谈话和研究期刊中的讨论会的组织做出了贡献，作为介绍新的研究文件的一种解释。

This research aims to develop efficient Web-crawlers and to investigate the basic properties of information delivery on the World Wide Web (WWW), based on the link structure evolved in the self organized manners, for dynamically constructing information space according to user's subjective viewpoints. The following results are reported with the published papers in the supported term of this grant.・From an analogy of interior point methods for the convex progtamming, we have studied the theoretical efficiency of the proposed geometric oprelations on the information space which consists of the degree of relations between information fragments combined by subjective viewpoints.・We have developed both types of master-slave and distributed Web-crawlers on the Java+HORB software environment for PCs in order to gather and analysis real data of the link structure. We have found a new phenomena of traversing between core pages of Web communities, and also discussed the load balancing problem on a heterogeneous system with different computational performances.・Simulation results have shown the important properties of the scale-free structure, which is commonly observed in many real complex networks including the WWW, for the defense strategies for cascading failures in packet routings and the damage size of spreading viruses on the networks with degree-degree correlations as similar to social/technological and bioligical systems.Furthermore, these activities have contributed with invited talks and the organization of symposiums in resarch comminities, as an enlightenment to introduce a new resaerch fileds.